OK, the keyboard of my Macbook Air just stopped working. Entirely. I clicked with the trackpad, thought "This click feels weird", and then the keyboard just didn't work any more.

Worse, I restarted, and now I can't log back in. External keyboard doesn't work; I have to log in to accept the 'utility' or something.

The only thing that works is the terminal in the special startiup options mode, but it doesn't appear to have access to anything.

#help